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redislock_bank.cpp
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redislock_bank.cpp
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/*
* redislock_bank.cpp
*
* Created on: 2015年4月3日
* Author: jimm
*/
#include "redislock_bank.h"
#include "common/common_api.h"
#include "frame.h"
#include "redissession_bank.h"
REGIST_BANK(BANK_REDIS_LOCK, CRedisLockBank)
//初始化
int32_t CRedisLockBank::Init()
{
m_nLockCounter = Random(100000);
for(int32_t i = 0; i < MAX_REDISLOCK_COUNT; ++i)
{
m_stUnusedLockList.push_back(new RedisLock());
}
return 0;
}
//卸载
int32_t CRedisLockBank::Uninit()
{
m_nLockCounter = 0;
while(!m_stUnusedLockList.empty())
{
RedisLock *pUnusedLock = m_stUnusedLockList.front();
m_stUnusedLockList.pop_front();
delete pUnusedLock;
}
map<uint32_t, RedisLock *>::iterator it = m_stUsedLockMap.begin();
for(; it != m_stUsedLockMap.end();)
{
delete it->second;
m_stUsedLockMap.erase(it++);
}
return 0;
}
RedisLock *CRedisLockBank::CreateLock(CRedisChannel *pRedisChannel, CBaseObject *pHandlerObj, LockResult Result, int64_t nTimeout/* = 60 * MS_PER_SECOND*/)
{
if(m_stUnusedLockList.empty())
{
return NULL;
}
RedisLock *pRedisLock = m_stUnusedLockList.front();
m_stUnusedLockList.pop_front();
CRedisSessionBank *pRedisSessionBank = (CRedisSessionBank *)g_Frame.GetBank(BANK_REDIS_SESSION);
RedisSession *pSession = pRedisSessionBank->CreateSession(pRedisLock, static_cast<RedisReply>(&RedisLock::OnSessionSetNX),
static_cast<TimerProc>(&CRedisLockBank::OnLockTimeout));
pRedisLock->SetRedisChannel(pRedisChannel);
pRedisLock->SetHandlerObj(pHandlerObj);
pRedisLock->SetLockResultCallback(Result);
pRedisLock->SetSessionIndex(pSession->GetSessionIndex());
m_stUsedLockMap[pSession->GetSessionIndex()] = pRedisLock;
return pRedisLock;
}
RedisLock *CRedisLockBank::GetLock(uint32_t nSessionIndex)
{
RedisLock *pRedisLock = NULL;
map<uint32_t, RedisLock *>::iterator it = m_stUsedLockMap.find(nSessionIndex);
if(it != m_stUsedLockMap.end())
{
pRedisLock = it->second;
}
return pRedisLock;
}
void CRedisLockBank::DestroyLock(RedisLock *pRedisLock)
{
pRedisLock->Unlock();
uint32_t nSessionIndex = pRedisLock->GetSessionIndex();
map<uint32_t, RedisLock *>::iterator it = m_stUsedLockMap.find(nSessionIndex);
if(it != m_stUsedLockMap.end())
{
m_stUnusedLockList.push_front(it->second);
m_stUsedLockMap.erase(it);
}
CRedisSessionBank *pRedisSessionBank = (CRedisSessionBank *)g_Frame.GetBank(BANK_REDIS_SESSION);
pRedisSessionBank->DestroySession(nSessionIndex);
}
void CRedisLockBank::DestroyLock(uint32_t nSessionIndex)
{
RedisLock *pRedisLock = GetLock(nSessionIndex);
pRedisLock->Unlock();
map<uint32_t, RedisLock *>::iterator it = m_stUsedLockMap.find(nSessionIndex);
if(it != m_stUsedLockMap.end())
{
m_stUnusedLockList.push_front(it->second);
m_stUsedLockMap.erase(it);
}
CRedisSessionBank *pRedisSessionBank = (CRedisSessionBank *)g_Frame.GetBank(BANK_REDIS_SESSION);
pRedisSessionBank->DestroySession(nSessionIndex);
}
int32_t CRedisLockBank::OnLockTimeout(void *pTimerData)
{
RedisSession *pRedisSession = (RedisSession *)pTimerData;
RedisLock *pRedisLock = GetLock(pRedisSession->GetSessionIndex());
CBaseObject *pHandler = pRedisLock->GetHandlerObj();
LockResult Proc = pRedisLock->GetLockResultCallback();
CRedisSessionBank *pRedisSessionBank = (CRedisSessionBank *)g_Frame.GetBank(BANK_REDIS_SESSION);
pRedisSessionBank->DestroySession(pRedisSession);
(pHandler->*Proc)(RedisLock::enmRedisLock_Timeout, pRedisLock);
return 0;
}